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#! /usr/bin/env python
# -*- mode: c; c-basic-offset: 2; indent-tabs-mode: nil; -*-
# vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
#
# Copyright (C) 2010 Patrick Crews
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
""" test_execution:
code related to the execution of est cases
We are provided access to a testManager with
mode-specific testCases. We contact the executionManager
to produce the system and server configurations we need
to execute a test.
"""
# imports
import os
import sys
import subprocess
class testExecutor():
""" class for handling the execution of testCase
objects. Mode-specific executors inherit
from me.
"""
def __init__(self, execution_manager, name, verbose, debug):
self.skip_keys = [ 'execution_manager'
, 'system_manager'
, 'test_manager'
, 'server_manager']
self.debug = debug
self.verbose = verbose
self.initial_run = 1
self.status = 0 # not running
self.execution_manager = execution_manager
self.system_manager = self.execution_manager.system_manager
self.cmd_prefix = self.system_manager.cmd_prefix
self.logging = self.system_manager.logging
self.test_manager = self.execution_manager.test_manager
self.server_manager = self.execution_manager.server_manager
self.time_manager = self.system_manager.time_manager
self.name = name
self.working_environment = {} # we pass env dict to define what we need
self.dirset = { self.name : { 'log': None } }
self.workdir = self.system_manager.create_dirset( self.system_manager.workdir
, self.dirset)
self.logdir = os.path.join(self.workdir,'log')
self.master_server = self.server_manager.allocate_server( self.name
, []
, self.workdir
)
self.record_flag=self.execution_manager.record_flag
self.current_servers = [self.master_server]
self.current_testcase = None
self.current_test_status = None
self.current_test_retcode = None
self.current_test_output = None
self.current_test_exec_time = 0
if self.debug:
self.logging.debug_class(self)
def get_testCase(self):
""" Ask our execution_manager for a testCase to work on """
#self.test_manager.mutex.acquire()
self.current_testcase = self.test_manager.get_testCase(self.name)
#self.test_manager.mutex.release()
def handle_server_reqs(self, start_and_exit):
""" Get the servers required to execute the testCase
and ensure that we have servers and they were started
as expected. We take necessary steps if not
We also handle --start-and-exit here
"""
master_count, slave_count, server_options = self.process_server_reqs()
(self.current_servers,bad_start) = self.server_manager.request_servers( self.name
, self.workdir
, master_count
, slave_count
, server_options
, self.working_environment)
if self.current_servers == 0 or bad_start:
# error allocating servers, test is a failure
self.logging.warning("Problem starting server(s) for test...failing test case")
self.current_test_status = 'fail'
self.set_server_status(self.current_test_status)
output = ''
else:
if start_and_exit:
# TODO: Report out all started servers via server_manager/server objects?
self.current_servers[0].report()
self.logging.info("User specified --start-and-exit. dbqp.py exiting and leaving servers running...")
# We blow away any port_management files for our ports
# Technically this won't let us 'lock' any ports that
# we aren't explicitly using (visible to netstat scan)
# However one could argue that if we aren't using it,
# We shouldn't hog it ; )
# We might need to do this better later
for server in self.current_servers:
server.cleanup() # this only removes any port files
sys.exit(0)
if self.initial_run:
self.initial_run = 0
self.current_servers[0].report()
self.master_server = self.current_servers[0]
return
def process_server_reqs(self):
""" Check out our current_testcase to see what kinds of servers
we need up and running. The executionManager sees to
serving the reqs
"""
master_count = self.current_testcase.master_count
slave_count = self.current_testcase.slave_count
server_options = self.current_testcase.server_options
return(master_count, slave_count, server_options)
def execute(self, start_and_exit):
""" Execute a test case. The details are *very* mode specific """
self.status = 1 # we are running
keep_running = 1
if self.verbose:
self.logging.verbose("Executor: %s beginning test execution..." %(self.name))
while self.test_manager.has_tests() and keep_running == 1:
self.get_testCase()
self.handle_system_reqs()
self.handle_server_reqs(start_and_exit)
self.execute_testCase()
self.record_test_result()
if self.current_test_status == 'fail' and not self.execution_manager.force:
self.logging.error("Failed test. Use --force to execute beyond the first test failure")
keep_running = 0
self.status = 0
def execute_testCase(self):
""" Do whatever evil voodoo we must do to execute a testCase """
if self.verbose:
self.logging.verbose("Executor: %s executing test: %s" %(self.name, self.current_testcase.fullname))
def record_test_result(self):
""" We get the test_manager to record the result """
self.test_manager.record_test_result( self.current_testcase
, self.current_test_status
, self.current_test_output
, self.current_test_exec_time )
def set_server_status(self, test_status):
""" We update our servers to indicate if a test passed or failed """
for server in self.current_servers:
if test_status == 'fail':
server.failed_test = 1
def handle_system_reqs(self):
""" We check our test case and see what we need to do
system-wise to get ready. This is likely to be
mode-dependent and this is just a placeholder
method
"""
return
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